Write down the first 3 common multiples of 4 and 8.
Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96
Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96
First 3 common multiples are 8, 16, 24
Answer(s): 8, 16, 24